If your dad didn't show u how to use the little raincoat every time then u have a high percentage of being the baby daddy. Yes the social services has a guy that serves you paper to get ur DNA. It's a coming.

Get the proof and if this is your child, prepare to have your world changed forever. Prepare to become a dad, not just a biological father.
Bottom line is you had sex and now a baby is on the way. I know it's not what you planned but it is what is happening. This baby didn't ask for it either.